Make OSX's blit() have a consistent signature with other backends.

anntzer · anntzer · commit 6d9a65a430c1 · 2018-05-31T00:53:26.000-07:00
FigureCanvasBase.blit documents blit() as defaulting bbox to the whole
figure, and all backends implement it as such... except, until now,
MacOSX.  Fix the inconsistency.
diff --git a/lib/matplotlib/backends/backend_macosx.py b/lib/matplotlib/backends/backend_macosx.py
@@ -88,7 +88,7 @@ def draw(self):
     def draw_idle(self, *args, **kwargs):
         self.invalidate()
 
-    def blit(self, bbox):
+    def blit(self, bbox=None):
         self.invalidate()
 
     def resize(self, width, height):
